Tire-rim



C. N. HAUFFE.

TIRE mM. APPLICATIN FILED JULY 15, 1920.

1,394,009. Patented Oct. 18, l1921.

,. Il, l I

' preserving its expanded condition in order UNITED s'rATEs PATENT .GFFICEL CHESTER N, HAUFIEE, OF COLUMBUS, lOHIO.

Leonesa.

Application i'i'ied Euly la,

Tofclllwwm it may concern:

...Berlitkknown that L'CHnsrnn 2. Hi-iirrie, a citizen the United States, residing at Coluinbusg in the county of Franklin and State diameter of the rim Jfor the'xpress purpose of facilitating the placing of a Vpneumatic tire upon the rim or the removal thereof without requiring'the use of special tools or exhausting manual efforts.

In practice it has been found that whena rim ot the above character is carried as a spare, that is independently of the vehicle wheels, the shocks and jolts imparted thereto by'fthe operation of the vehicle, will trequently cause the toggle sections to move out of their rim expanding positions and thereby permitting ot the accidental. collapsing of the rim, with the result that a tire fcarried thereby is released from locked en- 3o" gagement with the rim and may consequently work itself loose from the latter so as to become lost or, at least. the rim when so Carried has required the operator of the vehicle to at frequent intervals inspect. the same for the purpose of ascertaining and to avoid accidental tire loss for the reasons above given.

It' is therefore, a primary object ot the invention to provide a collapsible rim ot the above character which when carrying a pneumatic tire will be so constructed that iits through which the air valve structure ot` the toggle sections will provide overlappingr portions when the rim is expanded.v and to torni these "portions with registering openings tire is passed, said valve structure being Aadapted to carry a threadedl nut which brought intolirm and positive engagement with the toggle sections so as to securely lock the latter to the tire and to eifectually prevent accidental inward collapsing movement on the partot said sections, .this construction operates to insurethe retention ot the tire in its properly applied position upon the rim,

Specication of Letters Patent.

atentctl Got. 18, 1921.

ieee. sensi no. esaltati.. I

and by eliminating the likelihood of the loss ot the tire, an objection ot considerable importance againstthe use 'of a collapsible rim of the character stated is eliminated.

For a. further understanding ot' the invention reference is to be had to the following description and tothe accompanvino drawing in which similar characters oturetz erence denote like and correspondinf parts throughoutthe Vseveral views thereoll: I

Figure l is a side elevation of the improved rim and tire construction comprising the present invention, parts being shown lin vertical section to moreclearly disclose underlying structure, Y l

Fig. is a detail perspective view of one ot the toggle SeCtiOns of the -rinis Fig@ is a similar view of the other c0- operating Section.

Fig. is a transverse view taken on the line 4 ot Fig. l.

sshown in tlief. accompanying drawing, the present invention consists in the provision of a demountable tire rim l which is adapted to be employed for the purpose ot' cariving the pnei'iinatic'tii'e of a motor vehicle.- This rim consists ot a substantially resilient and circular body portion 2 which plane indicated by the vis hreterably formed from sheet metal yand includes a pair ot relatively spaced ends 3 and 1. In transverse cross section the body portion E2 is of the usualy tire retaining construction and therefore includes a tire re-y ceiving channel and the usual laterally Haring side flanges 6. l"referably.l the body portion is provided with a plurality of circuniferentially spaced lugs i', which are adapted to be utilized for the purpose ot securing the rim in an applied position upon the telly` not shown, of a vehicle wheel.

s is well known, itis an extremely difficult matter to force an ordinariy pneumatic tire over the Side tianges of leusuni form of rim, inasmuch as this`operationiisually requires the use of special tools or of considerable manual eil'ort and exertion on the part ot the operator.` rlhis"ditlic-.ulty is el imiiiated by the use of the rim l, wherein features ot constructionare provided tor controlling at will the effective diameter ot the rim, whereby the samelniay beI conveniently collapsed whenka tire' is being'pla-ced thereabout, and may likewise be similarly expanded to lock the tire in' secured relavertical sectional l tion therewith. This result is achieved by .the provision of apa-1rv of toggle sections. 8

' and 9 which yare adapted to be'secure'd tothe Vtract thevrim. Thus,

sion 13 provided on 15 are provided upon .capable upon the body port-ion and to be application of properly to either expand or con;

spaced ends ofthe directed pressures as at 10 to the end 4 of the body portion 2 and, similarly, the section 9 vis hinged as at 11 to the end 3 of the section 9. Then,.tov lcause .the toggle sections to move in' unisony pressure the toggle sections may be forced face so that the sections will beforcedvinwardly. After the sections have moved pasting downwardly and outwardly into their, rim

expanding positions and this movement is continued until said sections are forced'into true annular positions within-the rim 1, the normal to maintain said toggle sections and to preserve the cirfcular shaple of the rim. In fact, -the resilif ency of t e body portion will maintain the shoulders 15 in engagementlwith' each other f 'and also the meeting edges between theends 10 and 11 ofthe toggle sections and the ends 3 and 4 of the body-portion. In .cross section the sections A8 and 9 aresimilarto the conguration of thebody'portion, a feature which will be clearly understood; Tol con?.

tract the rim, it is simpiy. necessary to drop` nonyielding sur# .the same sharply upon a the plane of the hinges 10 and 11, the normal resiliencyof the body portion will con-- tinue the inward movement thereof. until the rim assumesits nally collapsed form. The inward positions of .the sections result in contracting the rim to such extent that a pneumatic tire or removed therefrom.l

-Coming now -to the essential feature of the present invention, the section 9 is pro- "vided with va strip 16 which connects transversely the ends of the section 9 and serves to overcome the weakness in the latter provided bv the inclusion of the .recess 12. strip is provided withan opening'17, which is arranged to aline, when the sections are in expanded positions. with a 'similar open'- ing 18 provided in the section ,8. These openings are so positioned that the same will receive the air valve structure 19 of a pneumatic'tire 20 carried by the rim, arrangement is provided .in order that the exterior nut-21 threaded `upon the outer porthe section4 8 1s hinged-- nection construction it will be resiliency of the body portion servthe expanded positions of' may be readily connected to resilientv metallic body separated and lspaced ends, a 'pair of hinged and this ition ofthe structure 19 may be threaded into clamping relationship 'wit'h'theinner surface .Of the strip 16. By virtue of this construcltion it will bemanifestfthat when theftire 20 is so clamped into engagement with'the. sections Sand 9,'said tire lwill bev positively locked in its position of application upon the rim.,4 Therefore, whentheriin is carried independently of the wheels of the vehicle, it -will be impossible for. .the toggle .sections to accidentallysprinfr inwardly so as-to as.- 'sume inactive rim collapsing positions, since by the provision of the'combination vof parts lrecited ,,more` particularly. the nut 21, inward vr'noi'zement of `said sections will be efectually precluded'. Thus, a tire maybe the? rim and will be at all times permanently locked and held in Vcontherewith. The construction. de-

scribed preventsthe accidental loss of tires, heretofore caused 'by Ithe accidental collapsing of the toggle` sections'and in this'man"v ner servesto eliminate the salient objection to the use of lcolla sible rims.

What is claime is;

safely carried by 1. In a collapsible tire rim, a 'substantially'.v

resilient body portion havinga pair of 'spaced ends, ytoggle sections hinged to `said ends and capable of expanding and contract y ing said rim,.and. said sections being each v formed with 'an openingcapable of being brought rim is expanded, whereby the air valve struc. 'turefof a pneumatic.- tire is capable of befing positioned. within said openings in such manner as -to lock said toggle sections against accidental movement.

2. In a collapsible tire-rim, a substan- Atially resilient body portion having a air .of spaced ends, toggle sections havingft eir outer portions hingedto said-ends, the inner portionsof 'sa-id toggle sections being. hinged-to each '-other, saidsections being formed' to include, portionsc'apableof .as-

'suining overlapping relationship .when the rim is'expan'de and saidoverlapping por-"- tio'nsbein'g each formed with a registerable opening adapted .for the reception of' the air valve structureof atire carried' by the... rim. 3. A tire rim comprising asubstantially formed t o include toggle sections having their outer portions hinged to said ends, the meeting ends'of said sections being formedV to include ya tongue extension capable of lying within a recess' formed in the other'coperative section, said extension being .pivotally 'connected to the inner wall of said recess, shoulders formed with. the adjacent ends of said sections and situated in offset relationship with respect to the-hinge of said tongue-extension and operating` to arrest outward 'movement' on -the part of said sections, and-a stri p formed into registering relation when sald ioo iaol

with the section in which the recess is provided, said strip being capable of. engaging with the other eompenientai section to relieve said shoulders of the stresses set up by the expanding movements of .he sections, and said strip being further provided with an opening capable of receiving the air valve structur by said rim,

e of a pneumatic tire carried whereby said structure will serve to lock said sections to said tire.

In testimon ture.

y whereof I aiix my signa- CHESTER N. HAUFFE. 

